Abstract
The pyrolysis of coffee husks and coffee parchment at 350 and 500°C was considered as the first stage of gasification by the two-stage thermal conversion of biomass into synthesis gas. The yields and compositions of pyrolysis products at the selected temperatures were determined. It was found that a significant amount of acetic acid was formed in the aqueous phase of the pyrogenic liquid to significantly complicate the use of an aqueous layer for the subsequent gasification. The possibility of practical implementation of the pyrolysis of waste coffee products as an independent process or the first stage of conversion into synthesis gas was noted.
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Funding
The study was supported by the Russian Foundation for Basic Research (project no. 20-08-00835).
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Translated by V. Makhlyarchuk
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Zaichenko, V.M., Knyazeva, M.I., Krylova, A.Y. et al. Pyrolysis of Coffee Husks and Parchment. Solid Fuel Chem. 55, 62–67 (2021). https://doi.org/10.3103/S0361521921010110
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DOI: https://doi.org/10.3103/S0361521921010110